Answer:
f
−
1
(
x
)
=
√
2
(
x
+
8
)
/2
,
−
√
2
(
x
+
8
)
/2
keep it under whole root
Step-by-step explanation:
So for this function we will be using the quadratic formula, which is
, to solve. a = x^2 coefficient, b = x coefficient, and c = constant. Using our equation, we can solve for the zeros (x-intercepts) as such:

In short, your x-intercepts (rounded to the hundredths) are (1.92,0) and (-3.92,0).
Answer:
The situation that represents this situation is:

Step-by-step explanation:
The amount of time t needed to assemble the set is inversely proportional to the number people n working.
This means that:

In which k is the constant of proportionality.
Twelve people can assemble the set in 5 hours.
This means that for
. We use this to find k.



Write an equation to represent the situation.

Hint: Selecting<span> "AUTO" in the variable box </span>will<span> make the calculator automatically solve for the first variable it sees. Quick-Start Guide. The calculator uses </span>cross multiplication<span> to convert </span>proportionsinto equations which are then solved using ordinary equation solving methods. Be sure to enter something in each input box<span> ...</span>
<em><u>Explanation</u></em>
Xian has 52 stamps and Kai has 76 stamps.
Xian's club will send him 16 new stamps per month and Kai's club will send him 12 new stamps per month.
Suppose, Xian and Kai will have the same number of stamps after
months.
So, the total number of new stamps for Xian
and the total number of new stamps for Kai 
So, the equation will be......

Thus, Xian and Kai will have the same number of stamps after 6 months.
The number of stamps for each of them will be: 